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Data Science : Recent Questions and Answers (Page 86)

Find answers to your questions about Data Science or help others by answering their Data Science questions.

Fraud risk propagation in large scale network

What's the best approach to do some graph analytics and risk propagation in a network using python where multiple accounts are connected through a relationship and few of the accounts...

Asked on 07/05/2021

2 answer

Training set Distribution and Activation function/Loss function correlation

How should the probability distribution of the training set influence the choice of the activation function / loss function? For instance if I have a Multinoulli distribution, which activation...

Asked on 07/05/2021 by Turned Capacitor

1 answer

Access global variable from UDF (User Defined Function) in python in spark

I am trying to alter a global variable from inside a pyspark.sql.functions.udf function in python. But, the change in not getting reflected in the global variable. The reproducible example along...

Asked on 07/05/2021 by give_it_a_bit

0 answer

Weights shared by different parts of a transformer model

Which parts of a transformer share weights, like, do all the encoders share the same weight or all the decoders...

Asked on 07/05/2021 by user105282

1 answer

feature importance after classification

I have time series data and more or less 200 features for each sample, I used a recurrent neural network for the binary classification task.After the classification I would...

Asked on 07/05/2021 by Rick0

3 answer

What is "SwarmPackagePy.cso.cso at 0x187cf21e340"

def rosen(x):"""The Rosenbrock function"""return sum(100.0*(x[1:]-x[:-1]**2.0)**2.0 + (1-x[:-1])**2.0)from SwarmPackagePy import csocso(1,rosen,10,1000,2,10000,pa=0.25,nest=100)Out[41]: <SwarmPackagePy.cso.cso at 0x187cf21e340>How can I access outputs of cso function? There aren't docs on this....

Asked on 07/04/2021

1 answer

Find the mode value and frequency in R

I'm trying to come up with a function in R that gives the mode value of a column along with the number of times (or frequency) that the value occurs....

Asked on 07/04/2021 by DataGuy23

1 answer

how is correct usage of the validation split in neural networks?

I have a dataset separated in train, test and validation splits. After each epoch, I evaluate the loss and accuracy in the validation split. When the loss in validation split...

Asked on 07/04/2021 by Xtalker

1 answer

How to re-train a model from false positives

I'm still a bit new to deep learning. What I'm still struggling, is what is the best practice in re-training a good model over time? I've trained a deep...

Asked on 07/04/2021

1 answer

How to utilize measurement accuracy metadata in classifier

Given that one wants to ascribe a class to groups of measurements using a classifier model, in what way can one include information about measurement accuracy? More specifically, is there...

Asked on 07/04/2021 by M.T

1 answer

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